The horses tested for possible drug contamination when travelling from Christchurch to the Harness Jewels meeting in Cambridge have all returned negative results.
All the horses are therefore all clear to start in their respective events at the Jewels on Saturday.
The New Zealand Racing Board has reopened betting on the six affected races.
“The RIU is very pleased with the result. The integrity system worked as it should. The trainers were proactive in advising the RIU of the potential contamination. The process then put in place by the RIU, working in conjunction with the New Zealand Racing Board, Harness Racing NZ and the Racing Laboratory was transparent, ensuring the public were fully informed and could have confidence in the integrity system," said RIU General Manager, Mike Godber.
Mike Godber Nick Ydgren
General Manager Chief Stipendiary Steward

The Harness Jewels is the premier championship harness racing event of the year in New Zealand, where the season's best horses, drivers,
trainers, breeders and owners compete for the Harness Jewels crowns in nine Group One races.
With over $1.2 million in stakes to be won, the Harness Jewels is the richest race day in all of New Zealand.
The race day takes place this Saturday at Cambridge Raceway.
Harness Racing New Zealand is thrilled for the first time that the 2018 Harness Jewels Big Screen coverage will be available on their website, you can click here for more details.
Total purses for Jewel’s is $1,275,000 (NZ). All starts will be behind the mobile starting gate. The title sponsor for this year’s Jewels is Waikato Day of Plenty Harness, Inc.
For special section for the Harness Jewels in New Zealand, click here.
The stakes race Jewels this year include:
$150,000 2YO Filly Pace
$150,000 3YO Filly Pace
$150,000 4YO Mare Pace
$150,000 2YO Colt Pace
$150,000 3YO Colt Pace
$150,000 4YO Horse Pace
$125,000 2YO Open Trot
$125,000 3YO Open Trot
$125,000 4YO Open Trot­
From Harnesslink Media

There has been a change of plans for ‘Team Tritton’s’ attack on New Zealand’s Harness Racing Jewels.
With just three days to go, driver and co-trainer Lauren Tritton flew over to the Shaky Isles a day earlier than planned.
The Group 1 winning reinswoman arrived in the North Island yesterday to put the final touches on Platinum Revolution and Petes Big Jim ahead of their upcoming feature assaults.
“I was meant to fly out on Thursday but I changed my flight so that I could drive both horses in fast work,” Tritton said.
“I like to drive them in track work too because you get a better gauge of where they are at.”
And that has been the case with ‘Team Tritton’s’ recent stable acquisition Petes Big Jim.
The gelding was transferred to their stable just over a fortnight ago and will face his biggest test to date when he lines up on the Two-Year-Old Emerald at Cambridge Raceway this Saturday.
In preparation for this he won a trial at Menangle in 1:53.5 – more than six seconds quicker than any race he has won.
“I really like him,” Tritton said.
“After driving him we’ve changed some of his gear and hopple length and we’re really happy with where he is at.”
Petes Big Jim has drawn barrier one in his $NZ150,000 test and so did his new stablemate Platinum Revolution in the Two-Year-Old Diamond.
And Tritton will be making the most of these draws.
“I don’t want to go home with a hard luck story,” she said.
“They are both talented two-year-olds and both drawn well so well so we have to make the most of it.”
Shane Tritton claimed Platinum Revolution is “the best two-year-old filly I’ve ever had!”
“She’ll definitely hold the front . . . the track favours inside runners so if we get to the front we can control our own destiny.”
Back home, Team Tritton will be relying on outside drivers to control other aspects of their destiny starting with Lynnsanity who is engaged in one of tonight’s Breeders Challenge heats at Penrith.
He will be driven by Lachie Manzelmann who has also landed the top drive on Yayas Hot Spot at Menangle on Saturday night, while Anthony Butt will also drive for the stable that night.
For the record, only 12 Australian horses have taken part in the Harness Jewels in the past 11 years.
Amanda Rando

Wobelee is used to overcoming obstacles.
Champion Aussie horseman Chris Alford says he can do that again from what looks a horror barrier at the Harness Jewels on Saturday at Cambridge.
One of the best juvenile trotters produced in Australia, the now three-year-old will start from the outside of the front line in his $125,000 mobile mile, a draw almost certainly made worse by hot favourite Winterfell drawing the ace.
But few Australian horsemen know more about beating the Kiwis, even on their home tracks, than Alford, who has won group ones at Addington and Alexandra Park as well as more than 6000 races in his homeland.
And Alford is adamant Wobelee, trained by his wife Alison, can win.
"I have watched a lot of videos of the locals and they are no better than him," says Alford in his matter-of-fact way.
"Winterfell was good winning the Derby but went a 2:0 mile rate whereas my horse went the same mile rate winning the NSW Derby after galloping and losing 50m early.
"I am not saying we are going to just turn up and win because it won't be easy but he is good enough to overcome that barrier."
Wobelee has been overcoming obstacles his whole life. When he was born his legs were so badly conformed he couldn't stand for days. Hence, his name.
He tends to need a little help along the way, as he can be cranky pre-start and will be spending the minutes before the score up on Saturday with an attendant or keeping the clerk of the course's horse company.
"He is fine as long as he doesn't have to circle with the other horses and I have explained that to the stewards.
"But he will be good as gold during the race and while we might have to sit parked to win, I think he can."
Michael Guerin

Steven Reid is hoping for a nasty Harness Jewels on Saturday. Like aggressive nasty.
Drivers getting stuck into each other out on the track, unfriending each other on Facebook the next day, food fight in the drivers' room type nasty.
That might be hoping for a bit much but it might be then, and only then, Pukekohe trainer Reid has a shot as a Harness Jewels double.
There is no doubt both Reid's four-year-old Star Galleria (Emerald) and Utmost Delight (Diamond) are good enough to win their $150,000 divisions.
In fact, give them the appropriate front line draws and they could be close to good things, definitely warm favourites.
But the problem is both Star Galleria and Utmost Delight have drawn wide on the second line in their mobile miles, often the kiss of death at Cambridge.
Unless, of course, Saturday's races are run upside down, with super fast sectionals early, making rare swoopers victories a reality.
If that dream scenario unfolds Reid is adamant he has the horsepower to take advantage.
"I need them to go hard in both my races or maybe we can't win, it could be that simple," admits Reid.
"Mile racing at Cambridge can be hard enough but if you have to come wide and they run home [800m] in 55 seconds it can be impossible.
"But looking at the fields I think we have a chance because they could be really hard run races."
Reid has a point as both four-year-old pacing dashers lack a dominant favourite to lead and deter attackers and they also have enough gate speed and form doubts spread across the front line to suggest early fireworks.
Take Star Galleria's race. If key rival Eamon Maguire was drawn to lead the race could be as good as over, with very little likelihood of attack. Instead, he is drawn the second line and Reid hopes driver Zac Butcher can turn his rival into an ally.
"I am hoping Zac can get straight on his [Eamon Maguire's] back and get a cart into the race, either early or late."
If that happens Reid knows his rep has the raw speed to capitalise, with Star Galleria brilliant at Alexandra Park last Friday.
He has already claimed some serious open class scalps this season, including Heaven Rocks when he led and won the Flying Mile on this track in January.
"He is right back to his best but that tempo is crucial. I hope they go nuts up front."
Utmost Delight looks one of the few horses all day who can come wide and win.
Utmost Delight is a group one winning mare who looks at her peak in a race where some key rivals have form or barrier draw (Bonnie Joan) concerns.
"She has needed her last two runs to bring her back to her peak, which often my horses do.
"But she was great last Friday night and has really come on with it this week. There looks to be some speed and some aggressive drivers in her race so again, we need that early burn.
"If we get that and she gets the right three-wide cart into the race I know she can win."
As good as Utmost Delight is, she has got into tight odds at $3.50 for a mare with her draw and punters will almost certainly be better waiting to back either of Reid's pair on the day or on the tote.
Wait, and then hope, for some good old fashioned aggression.
Michael Guerin

Horse trainers usually treat the news a key rival has been scratched from a group one race with a kind of political grace.
Which means they more or less lie and pretend they are upset for their fellow trainers, when in reality they are thrilled their horse is one step closer to the winner’s circle.
But not Cran Dalgety. Not this Saturday.
Dalgety was genuinely shocked and disappointed to hear star Aussie mare Carla’s Pixel was pulled out of the Harness Jewels on Monday, even though she might have been the hardest for Dalgety’s mare Bonnie Joan to beat.
The pair were set to both start off the second line in the $150,000 four-year-old Diamond but Carla’s Pixel will now not get on the plane across the Tasman after a poor last start performance.
While that should make Bonnie Joan’s task on Saturday easier, it has almost certainly made it enormously more difficult.
Bonnie Joan was originally drawn barrier two on the second line and set to follow through behind a fast beginner and get handy, which is about as good as life gets from the second line in a mile race at Cambridge.
But Carla’s Pixel’s withdrawal has hit Bonnie Joan hard on two front fronts. Firstly she moves to the inside of the second line, but it also lets emergency Christanna into the race and she has drawn the ace.
So Bonnie Joan has gone from being all but guaranteed being handy in the running line to starting directly behind an 80-1 chance who is certain to take a trail, meaning Bonnie Joan is facing a traffic nightmare.
“Oh, that is not good,” said Dalgety upon hearing the news of Carla’s Pixel’s scratching.
“I was quite comfortable with two on the second line but now everything has changed. I’m really happy with the mare but Dexter (Dunn, driver) is going to have to find some luck somewhere. And to be honest, I don’t know where.”
The race is likely to be Bonnie Joan’s last as she heads to the broodmare paddock a valuable commodity and the scratching of Carla’s Pixel and the subsequent draw reshuffle makes the race one of the most puzzling of the day.
Dalgety takes seven horses to the Cambridge mega meeting and while others have draws suggesting they will need luck, he is very keen to take that out of the equation with Pat’s Delight in the last race for the three-year-old boys.
The speedster has had a rollercoaster season, looking a potential early star when beating good older horses, racing below par on his Northern Derby trip then only going down a nose in the New Zealand Derby.
“We have had some good luck and bad but we want to take that out of the equation this Saturday,” said Dalgety.
“We are drawn inside the other favourites and have good gate speed so I want to see him in front and staying there.
“If we do that and they are still good enough to beat us then so be it,
“But we don’t want to be handing up and I don’t think there are going to be a lot of drivers who do this week.”
Pat’s Delight is locked in a three-way battle for favourtism around the $3 mark with his Derby conqueror Sheriff and Sicario for the last race, always one of the more dramatic on Jewels day.
The blazing early gate speed from at least of the horse on the front line coupled with the fact the All Stars have three reps in the race who will need to move early to have any chance suggest it will be one of the highlights of the day again.
Michael Guerin

A cloud hangs over one of only three previous Jewels winners heading to Cambridge for Saturday's $1.275 million meeting.
Because after stopping to a walk at the Pukekohe workouts on Saturday, Partyon will need to pass a vet test on Wednesday to be allowed to start in the four-year-old Diamond.
Only Partyon, Enghien and Dizzy Miss Lizzy go into Saturday as past Jewels winners, Partyon's story the most remarkable as she won the two-year-old Diamond two seasons ago at only her second start.
While that was a dream result, this week's preparation has turned into a nightmare.
She suffered atrial fibrillation at the Pukekohe workouts on Saturday and while many horses recover from that problem and go on to race at, or close to, their peaks at their next start, it is hardly ideal for Partyon.
She had only just returned to usual trainers Mark Purdon and Natalie Rasmussen to prepare for the Jewels after an Australian campaign and not only suffered the fibrillation but of course missed the fitness benefits of a proper hit out on Saturday.
Purdon is confident she can still make the $150,000 mile but admits the preparation is less than perfect.
"The good news is her heart had returned to its normal rhythm by last night (Saturday) and that is one of the most important things," explained the champion trainer.
"But we will get her checked out again on Wednesday and make a final decision then. But I think she will still be starting."
Partyon already faces a huge task from her second draw in one of the glamour races of the day but that is indicative of what the All Stars are up against on Jewels day. They have 20 horses entered for the meeting and only Winterfell (barrier one) has drawn inside barrier four.
"I can't remember us getting a series of draws like this and I can see it being a real issue as it looks a day where not a lot of drivers are going to be handing up," said Purdon.
Three final acceptors withdrew yesterday, with Kendra pulling out of the two-year-old Diamond and both Puma Road and Girls On Film withdrawn from the three-year-old Ruby.
Michael Guerin

Another busy weekend of harness racing coming up with the highlight being the premier meeting at Addington on Friday night.
There are four meetings this week starting with the Waikato Bay Of Plenty harness racing meeting tonight.
Addington has the premier meeting on Friday night and the weekend harness racing heads to Gore on Saturday and Oamaru on Sunday.
Last week the biggest winning dividend in the ringaround selections went to Rory McIIwrick who thought I'm Trouble would go close to winning at Invercargill. I'm Trouble did win and paid $10.10 and $2.30 on the tote.
Note: We will keep adding to this page if more tips come in after the deadline, so check back often
Waikato Bay Of Plenty at Cambridge on Thursday night.
Andre Poutama - Andre is going for Gold Rocks as his best drive tonight in Race 2
Stephen Richardson (Odds Analyst) - Stephen thinks the Dickie trained Cullens Caviar can win Race 9
Jay Abernethy - Jay is going for Littlebitoflove as his best chance this week in Race 10
Todd Macfarlane - Todd thinks his best drive tonight would be Vatican Hill also in Race 10
Addington on Friday night
John Morrison - John says that Ruthless Kayla would be his best drive this week at Addington in Race 2
Gavin Smith - Gavin says his best chance this week would be Miracle Rising also in Race 2
Matthew Williamson - Matthew is going for Oscar Bonavena as his best drive this week in Race 4
Tony Herlihy - Tony thinks Gold Orchid would be a place chance this week in the Oaks at Addington in Race 6
Ricky May - Ricky is going for Enghien as his best drive this week at Addington in Race 7
Cran Dalgety - Cran thinks Funatthebeach is going to be the hardest to beat at Addington in Race 10
Gore on Saturday
Blair Orange - Blair says his best drive this week would be Artstanding at Gore in Race 1
Brent Barclay - Brent thinks his best drive this week is Allaboutdreams on Saturday at Gore also in Race 1
Brad Williamson - Brad says his best drive this week would be My Blue Heaven at Gore in Race 2
Nathan Williamson - Nathan says his best chance this week is Be Holme By Three at Gore in Race 4
Rory McIIwrick - Rory says that I'm Trouble would be his best drive again at Gore in Race 10
Shane Walkinshaw - Shane is going for Cullens Avenue as his best drive this week at Gore in Race 11
Oamaru on Sunday
Racechat - Lance thinks that Bicton is a good chance of winning at Oamaru in Race 2
Harnesslink Reporter - thinks Stars Tonight should go close to winning at Oamaru in Race 3
Terry Chmiel - Terry thinks his best drive this week could be Flyinova at Oamaru in Race 6
John Curtin - John thinks that Bringitonhome can go close to winning again this week in Race 7
Harnesslink Media

Of all the conversations the youngest boss in New Zealand racing has had about the first Jewels meeting he will oversee in two weeks, one theme stands out.
"I am getting a lot of people tell me this time it feels like the first Jewels all over again, something new," says Cambridge chief executive David Branch.
At 28, Branch is extremely young to be running any racing club, let alone one hosting harness racing's second biggest meeting on June 2.
The $1,275,000 day comes with even more pressure after the recent decision to transfer the South Island Jewels meeting next season from Ashburton to Addington.
Put simply, if Cambridge have a great, or even good, result they should keep the hosting rights for 2020. If they don't, the pressure to move to Alexandra Park as the northern base will intensify.
Unusually calm for one so young in a racing administrative role, Branch is confident without a hint of brashness.
"The only worry I have is the weather, and we can't control that obviously," he said. "But even if the weather isn't the best, we have capacity for between 2500-3000 people under cover."
That number would be a crowd pass mark for a track as intimate as Cambridge. But Branch wants 4000. Maybe 5000.
"The buzz around here, around Cambridge, has been fantastic," he said. "We've had support from the Waipa District Council, we're getting a lot of buy-in from the community and we think we'll get great support from the gallops industry.
"For the first time since we started holding the Jewels every second year, there will be no Ellerslie meeting on the same day, no northern gallops.
"So we really want to get the gallops people to enjoy a day at the races and we've aimed some facilities directly at them."
A pop-up sports bar with a capacity for 400 and hosted by gallops expert Brendan Popplewell will cater for the thoroughbred-keen punters, ensuring ample television coverage of the gallops meetings both domestically and in Australia in between the Jewels action.
"And we'll have some of the local celebrities there and of course Peter Moody."
Moody is almost as famous for his media work these days as he was when he trained champion mare Black Caviar and he is a key part of Cambridge's attempt to lure the thoroughbred community to their mega meeting.
"Peter is great on social media and television and we have an in-depth interview with him at the pre-Jewels function here on the night before. We already have 150 bookings for that, which could double.
"He will also be speaking in that sports bar on the raceday itself and we are sure plenty of people will enjoy hearing his views on all things racing."
Branch says his new management team "basically tore up the plan" from the last Jewels at Cambridge two years ago.
"It will feel a totally different experience right from the time people walk on track. We have a food truck village and sponsors like Corona on board.
"So the place will feel different and then of course the racing on Jewels day is always awesome. So the buzz is there, and so many people have told me it feels like the first time the Jewels came to Cambridge."
The racing was strengthened over the weekend with the seventh Australian invite and Aussie star trotter Wobelee winning the New South Wales Derby, confirming his trip to Cambridge.
"To have seven Aussies coming to the meeting is incredible but we can't take the credit for that, that has all been Darrin Williams from HRNZ.
"But it all adds to the exposure and it will be exciting to see how horses like Jilliby Kung Fu and Wobelee go against our horses."
Branch said tickets for the premier marquees were selling fast and he expected them to be gone before the start of Jewels week.
Harness Jewels
Where: Cambridge Raceway.
When: June 2.
What: Nine group one races, $1,275,000 in stakes.
Who: New Zealand's elite harness horses against seven Australian invites.
Michael Guerin

The New Zealand Amateur Driving Championships will receive an extra $2,000 in stakes money added to the two heats to be held at the Cambridge Raceway on May 17.
Jeff Darby, president of the North Island branch of the NZ Amateur Drivers Association, said the stakes increase will make up the shortfall from other races as amateur stakes are less than other carded races on the programme.
“I just want to thank Waikato-Bay of Plenty, all the owners and trainers, and our sponsors for making this happen. It doesn’t matter if you are a trainer of an amateur horse or not – the training, travel and vet costs etcetera are still the same,” Darby said.
The four North Island sponsors for the two Cambridge races are the Flatbush, Botany Downs, Highland Park and Somerville TABs.
“We can’t thank the four TAB agencies enough. They have put their support behind the amateurs and we certainly hope they all get a lot of mileage from their sponsorship,” Darby said.
Following the two heats at ‘The Raceway’ the Championship will reach its climax with the final two heats at Rangiora on May 27.
The North Island team comprises of the Wigg twins - Cheree and Sheryl, Steve Phillips, Rodney Frampton, Logan Darby, and Craig Sharpe.
“The drivers have been selected from our Summer Series and tote and workout races throughout the season. We wish all of them every success, especially Cheree who will represent us at the World Driving Championships.
“I also want to thank Dave Branch (Waikato-BOP Harness) for making this all happen and Kevin Smith (HRNZ) for putting the conditions in place. It promises to be an exciting night’s racing,” Darby said.
“There is a lot of initiative being shown at Cambridge and you have to put that down to Dave and his enthusiastic team. Times change and Cambridge is certainly moving with the times,” he added.
Sheryl Wigg is New Zealand's most successful amateur this season with seven wins, followed by Alan Edge (5), Cheree Wigg (4). Rodney Frampton, Colleen Negus, Warren Rich, Barry White, and Blair Wilmott who have all recorded two wins apiece.
Cambridge Raceway

The opportunities' keep on rolling in for the trotting ranks with the announcement today of the Haras des Trotteurs Waikato Trotting Oaks.
To be held on May 17th at Cambridge Raceway, the $15,000 race comes hot off the success of the Haras des Trotteurs Southland Trotting Oaks held in March.
The North Island opportunity was identified by Haras des Trotteurs and Waikato Bay of Plenty Harness Racing Club with numerous benefits for industry participants stemming from the May event.
Cambridge Raceway CEO David Branch says 'we're thrilled to be able to offer this opportunity to the North Island Trotting Ranks and to be working with Pat Driscoll, Dave Sanders and the Haras des Trotteurs Team.
Pat's vision and passion for the trotting gait is phenomenal. This a brilliant racing opportunity for the owners and trainers of 3YO fillies. The timing of the race as the feature event on the final North Island qualifying opportunity for the Harness Jewels will only add to the excitement and interest."
Haras des Trotteurs principal Pat Driscoll is well known for his love of the trotting gait throughout Australasia is second to none. Haras des Trotteurs is a multi-faceted major operation. Offering 11 trotting stallions to Australasian Breeders, including champion sire Love Lou and the exciting freshman Orlando Vici. Pat also breeds from one of the most impressive trotting broodmare bands around. The Ballarat based operation is also home to a highly successful training establishment.
Cambridge Raceway are confident that this new event will attract strong numbers and "implore Trainers to nominate not only their Harness Jewels eligible fillies but those late bloomers. The more support this race has this year the bigger it will become in further years" added Branch.
Sentiments echoed by trainers John and Joshua Dickie who will look to line up a couple of runners.
"It's good to do something for the fillies and the timing is great. In the current programming it is hard for fillies to be placed away from the colts. The opportunity to earn those last minute dollars for the Jewels is great but also just giving the fillies their own opportunity is awesome. It's a race that has the potential to build into something major, well done to the club"
The club recognises the efforts of NZ Breeders Association in promoting the increased racing opportunities for trotting fillies with the Hara des Trotteurs sponsored Oaks in Auckland, Southland and now Waikato.
Dave Saunders of Haras Des Trotteurs had the following to say about the announcement;
"Fillies of course are the broodmares of the future and to be able to give them the right opportunities to showcase their talents is how we develop the champions of tomorrow, which is what drives us all as breeders, owners and trainers and excites the fans and brings them to our great game.
"With Down Under trotters once again invited back to the rich international races in Sweden and the United States, it really is an exciting time for this truly globally popular gait.
"Haras des Trotteurs would like to thank the Waikato and Bay of Plenty club and Cambridge Raceway for the opportunity to continue our mission to breed and race world class trotters in Australia and New Zealand."
Haras De Trotteurs Waikato Oaks, $15,000
Thursday 17th May 2018.
Nominations close - Monday 14th May 2018
More information:
Cambridge Raceway - cambridgeraceway.co.nz | 07 827 5506
Haras De Trouttuers - www.harasdestrotteurs.com.au
Charlotte Mooney
Cambridge Raceway